diff --git a/wise-webapp/src/main/webapp/jsp/iframeWrapper.jsp b/wise-webapp/src/main/webapp/jsp/iframeWrapper.jsp
index 3b682c3c..7c73d5df 100644
--- a/wise-webapp/src/main/webapp/jsp/iframeWrapper.jsp
+++ b/wise-webapp/src/main/webapp/jsp/iframeWrapper.jsp
@@ -15,7 +15,7 @@
 <script type="text/javascript">
     $('submitBtn').addEvent('click', function () {
         var iframeWindow = $('dialogContentIframe').contentWindow;
-        if (iframeWindow) {
+        if (iframeWindow && (typeof iframeWindow.submitDialogForm == 'function')) {
             var delay = iframeWindow.submitDialogForm();
             if (MooDialog.Request.active) {
                 if (!delay) {